It depends on time/market situation I think. sometime Holders can earn huge profit and sometime trader. In bullish market holder can earn huge profit and in bearish market trader can earn profit than holders I think.
I think this is an open secret that Trading is something that can make you some good money as compared to a stationary holder. For a Hodler, it is the market force and the surge that makes up the value and the surplus money. Traders on the other hand can make daily profits by making use of the volatility of the market. But HODL is a kind of relaxed way of making money if you have no hurries to sell your coins.